Also I never thought it was worth it to pay forJet Hot {around $300} because accidents do happen andheaders do get smashed, and your out $300+ for headersand $300 for coating. I figuered I could buy a spareset with that money. A guy I know has a 454 in hisMonza with Jet Hot Headers, and he went with CanfieldHeads and had to add sections to his headers cause theexaust ports are higher, so he had to have them recoatedand know he has over a $1000 in headers.

They make "shorty" Plugs just for headerapplications. I've never userd them, but I think they werelisted in Summit, Jegs, or PAW's. The last time Ichanged plugs in my monza, I took out AC plugs and put inAutolite's (if I remember rihgt) and the new ones I put inhad about a 1/4" longer insulator.The reason Iremember this is because I had a hell of a time gettingthe #1 or #3 plug insulator back on so I started tocompare and the plug from the base of the threads to thetip was longer. I'm not positive on the brands of theplugs, but I do remember they were the same heat range.Maybe someone here in the club that works a anautoparts store could get out various brands of plugs anddocument this more.Perry

Headers are a pain in the butt here in LA(loweralabama).If they're not coated,they rot,and the whoopie-doo'sin the roads,'drainage' ramps into &out ofbusinesses,rip the collectors,mufflers or pipesoff.Besides,$200-400 dollars for 30HP is bad math,in my book.Now for adrag-race H-body(aah,I am talking about H-body'shere,right?) then this "bundle of snakes" is worth thetrouble.Even on the small out law tracks around here w/ thedirt road return lanes.("I have to buy another set ofslicks?")I like ported cast iron exhaust manifolds w/ heatshields.No brainer,easily works like an anvil,and a lot lessHVN(harmonics/vibration/noise).Just me holding forth for what it's worth.Frank

Simpler is usually better, so I doagree with you. However, those stock manifolds runoutof room after about 4000 rpm, so you cant realy putto big of a cam in the motor. So the headersthemselves with no other changes dont add much HP, but theyallow to add more cam, carb, etc which can really pushthe HP up. Everythings is a compromise Iguess!

Jeff,yes the stock exh manifolds are RPMlimiting.The claimer motor round trackers have to use castmanifolds,so they have them ported.Car Craft listed an IROCZ/28 that almost flows as good as headers,having a2.5" outlet.These should work in an h-body.For me,thesecondary roads around here are so whoopie-do'ed thatheaders would just get beat to death,and unless they arecoated won't last.I'm looking at a torquer motor any wayas this will be a street/SCCA SoloII car,w/ thedream of running the Silver State Classic.And,yes,everything is a compromise.Frank